What mean function diag and fliplr explain this two functions?

not understand work this function?

[Andrew Newell]

Have you looked at diag and fliplr?

Answer 1

[Star Strider]

If you are talking about my not yet Accepted Answer to your previous question, the diag function creates the diagonal matrices (see the documentation for details), and since the matrix you want is the mirror-image (enantiomer) of the one I created, I used fliplr to create the one you want.

My code from that Answer:

A = zeros(8);
for k1 = 4:7
    A = A + diag(ones(1,8-k1),k1);
    A = A + diag(ones(1,8-k1),-k1);
end
A = fliplr(A)

Answer 2

[Reem Al Shehri]

Thank you answers.

[Star Strider]

My pleasure.